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Write class shape with width and height following a constructor that gives value to them.
Then define two sub-classes triangle and rectangle.
Those sub-classes can calculate the area of the shape area().
You need to follow the main() below. Please complete the program.

int main (){

    Rectangle rect;
    Triangle tri;
    rect.set_data (5,3);
    tri.set_data (2,5);
    cout << rect.area() << ";" << tri.area() << endl;
    return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited

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#include * ** *



using namespace std;



class shape  {
* **** * **** ***
* **** **** * ** **** **** * * set_data(int x, int y)
**** * ****** **** ** ** * *
* ** *** * ** ***** * * ** * * * * **** *** ** ** = x;
*** * ** ***** * ******* ** * * * ** ** ** * * ** ***** ** ***** = y;
** * ** * * * ** * * ******


*** *** * * * ** ****
* * * * **** * * ** * ** ** * width;
*** * ** * * ** * ** * * * * * * height;

};



class Rectangle: public shape {
* * ** * ** *
** * ** ** * **** *** ** * *** *** area() {
* ** ** *** *** ** ** * ****** *** *** *** * (width * height);
** ** * * **** ******* ** * *** * *

};



class Triangle: public shape {
* *** ***** ** ** * *
* * * ** * **** ** **** ******* ** * area() {
** * * *** * ** * * *** * ** ** * * ** * * * **** * * (width * height / 2);
***** ** * * ** **** ** ** **

};



int main(void) {
** ** * * * ** * rect;
* *** * ***** * ** **** tri;


* * * ** ** *** * ** 3);
** * *** ** **** **** * * 5);


* * * * * * ** * ** **** rect.area() ** ** ** * ** * ** ** ** tri.area() ** ** ** ** endl;


** *** * * ** * * * * 0;

}
answered by (126 points)
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#include ***** * * *** *



using *** ** std;



class Shape

{
******
** ** * **** * width, height;

public:
** * * *** ** * **** set_data (float a, float b)
*** * ** * ** * * **
* * ** ** *** * * * ** *** ** *** * ** * * = a;
* * * * * *** * * ** *** *** * ** = b;
* * * * ** *

};



class ** * public Shape

{

public:
* * ** ** **** *** * area ()
*** * **** * ** * **** *
*** ** * **** * * * * ***** * *** ** * *** * * *** (width * height);
* ** ** * **** ***** * *

};



class * * public Shape

{
* * *
* ** * *** ** ** * *** * * *** area ()
**** *** *** *** * * **
****** ** * *** * ** * *** ** * * ******* (width * height / 2);
* * * *** * ** * ** ****

};



int main (){
* * ******* ***** **
* * **** * * ****** * * rect;
*** * * *** ** *** tri;
* * ** ** ** ** ** * * **** **** (5,3);
***** *** * ** * ***** * (2,5);
*** * **** * **** * * * ** *** ** * ** ** * * **** ***** * * * * *** ** ** * * endl;
***** *** ** * ** ** * 0;

}
answered by (-215 points)
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Hidden content!
#include ** **** *



using * * * std;



class Shape

{
***
* ** ** * ***** ** * width, height;

public:
* * **** * *** * *** **** set_data (float a, float b)
** **** *** ** *
* ** *** * * *** *** * * ** * * * ** * ** ** = a;
*** * * ** * * * *** ** * ** ** ** * ** **** ** ** = b;
*** * * * ***** *****

};



class * public Shape

{

public:
* ** ** *** *** * * area ()
** *** * * * * **
* ** *** * *** *** *** **** * ** * ** * (width * height);
*** * * * * *********** *

};



class * ** public Shape

{
* **
* * * * * * * ** **** *** area ()
***** * ****** ** ***
* *** * * ** * * **** * *** ** **** * * * * ** ** (width * height / 2);
** ** * ** * ** *

};



int main (){
**** * ** * *** ***** *** ** *
* ** * * *** ** * * * rect;
* * *** * * * * * **** * ** tri;
**** ********* * ** (5,3);
* * ** ** ** * ** * ** * (2,5);
* * * ** * * * ** ** ****** ** * **** ** **** ****** ***** ** * * * ** * * * ***** endl;
* ** ** ***** *** * * 0;

}
answered by (-298 points)
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Hidden content!
#include * **** * **



using * std;



class Shape

{
* **
** * *** * * * ** *** ** width, height;

public:
* * * ** ** * * set_data (float a, float b)
* ** ***** * ** * ****
* * ** *** ** * * * * **** * * * = a;
* * * * * ** ** * *** * *** *** **** *** ** * = b;
* * * * * * ******** *

};



class * *** public Shape

{

public:
******* ** *** *** ** * * area ()
**** * ** * * *
* ** * * ** * * * * * * * * * * * (width * height);
* * ** ** * * * *

};



class ** public Shape

{
* * *
*** * *** * * * area ()
* * ** ** ** * *
** ** *** * * **** * * ** * **** ** * **** ** * * (width * height / 2);
* *** *** * * * * ***

};



int main (){
* * *** ***** * **** *
* * * * * ** *** *** rect;
*** * * * ***** *** * * * tri;
* ** * * * ***** ** ** * (5,3);
*** ** * ****** ** * * ***** * (2,5);
* ** *** ** *** * *** * ** * ***** * * ** **** * * * ** ** * * *** * * * ** * * ** endl;
** * ** * * * * ** 0;

}
answered by (237 points)
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Hidden content!
* * * * * * * *

using **** std;



class ** **
* * *** * * ** *** ** ******
*** ***** * * ** ** width;
**** **** * * *** * ** *** height;
** * *** *** ** * * ** ** *** * * height);
** * ****** * *** * * area();

};



class * **
* * * ** ***** * *
* * *** ****** *** * * * width;
* * ***** ** * ** * ***** height;
* * ** ** * * * * ** * * * * ******* height);
* * * *** ** * **** * ** ** * area();

};



void * ** * :: ** * * swidth ,float **
* **** * **** *** ******* = swidth;
** * ** * * * * * * = * ** *

}



float * **** :: area(){
* * ** ** * ** * * * *** ******* ** (width * * *

}



void * * :: ** ** swidth ,float * ** *
*** **** **** ** * * ** ** = swidth;
* ** * **** *** * * = * **

}



float Triangle :: area(){
** ** ** * * * * *** ** * * *** ** ** **** * ***** ** ((width * * *** *

}



int main (){
* ** * ** * *** * * *** * rect;
* * * * **** * * * * * tri;
* * ** ** *** * * * ******** * (5,3);
* * * * **** *** ****** * (2,5);
* * * ** * * * * **** **** ** * * * *** ** * **** ** * ** * * * ** ** ** * endl;
**** ** * *** * **** ** 0;

}
answered by (-136 points)
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Hidden content!
* * ** *** *

using *** std;



class *** * *
** **** *** ** ** * * *
* * * ** ** ****** ** width;
***** ******** ** * ** * * height;
** * ** * ** * * * * * * * ***** *** height);
** * * *** * ** ** area();

};



class *
*** * ** * ***** ** ***
* *** * *** ** * ** * * * width;
** ** * * * * * * *** * height;
*** * * *** * ***** ** *** ** ** * ** *** *
* * *** **** ** * * * area();

};



void * ** :: * * *** * swidth ,float * ****
* ** * ****** * * * = swidth;
* ** * * * * * **** ** ** * = sheight;

}



float *** * :: area(){
** *** * * * * ** ** ****** * * ** * * * (width * * **

}



void ** * :: * ** * *** swidth ,float ******
* * * ** ** **** ** = swidth;
** *** *** * ** ** * * = sheight;

}



float Triangle :: area(){
* ** * * *** *** * * * * ***** * ****** *



int main (){
******** ** ** * * * * * * rect;
* ***** ***** **** ** ** * tri;
* * * ** ***** **** ** * ** * (5,3);
* **** * * ** *** * ** * (2,5);
* * * * ** *** ** * * * ** ** *** * * * ** * ** * * * * ** * * * * endl;
* * *** ** **** 0;

}
answered by (-136 points)
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Hidden content!
*** *** * * ** *
* *** * ** * * *



using namespace std;



class Rectangle{

public:
** * * * * **** * * *** * set_data(int H, int W){
* *** * * * * ** ** * ** * **** ** = W;
*** * ** *** *** * ***** ** * * * ** * ** ****** = H;
* ** ** ** * *** * * **
** * * * * ** ****** area(){
** ** ** * * * ** * ****** * * * ** ** ** * ** ** ***
* * * *** * * * *



private:
** * ** *** ** * ** r_width;
**** *** * * * ** * * r_height;



};



class Triangle{

public:
* * ** * ******* **** set_data(int H, int W){
*** * **** **** * ** ***** *** * * ** ** * * = W;
**** *** ***** * *** * *** ** * * **** = H;
*** ****** ** ***** **** *
* ** **** * * ** * *** area(){
**** ******* * * * ** * *** ** ** * * ** * *** * * * ** * * * *
*** * * * * *** ** * ***

private:
**** ** *** **** * t_width;
* *** *** ** ** ** * * ** t_height;

};



int main()

{
*** ** ** * * * **** * ** * rect;
*** * ***** * * * ** * *** tri;
*** ** ** ** ** * * * **** * * (5,3);
* * * *** **** *** * * ** * * (2,5);
** * ****** * * * * * ** * * ** ***** rect.area() * * * ** ** *** ** << tri.area() << endl;
* *** *** * * **** *** *** 0;

}
answered by (-368 points)
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Hidden content!
*** ** ** **



using ** * std;



class * *** {
** *** **** * ** width, **
** ** ** * *
*** ** ** *** * * **** *** *** * *******
** * ****** *** * * * ** * **** area() * * * ** * *****

};



void * * ** * (int x, int y) {
* * *** * = x;
* *** *** = y;

}



class * ** {
* ** * ** * * * ** ** * * base, **
* * **** *** *
* * *** *** * * * * * * **
* * ** ** * * *** * area() {return ** **

};



void *** *** (int x, int y) {
* * * ** * = x;
**** * * ** = y;

}



int main (){


* * ** ** * * ** * * * * rect;
** * **** * **** *** * * * tri;
**** **** * * ** * *** ** ** * (5,3);
* **** * * ** *** **** (2,5);
* * * * ** * * * *** * ** * *** ** * *** * * ***** * * * * * * ** * ** **** * * ** endl;
* *** ** * *** **** ***** * 0;

}
answered by (-218 points)
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//

// ** ***

// *** *

//

// ********* by **** on ***

// ** ** *** © 2017年 ** * All rights ** * *

//


* * * *** ** ** *
*** *** **** * * *

#include * * * *

using *** std;



class shape {

public:
** * ** * * * ** ***** * * * width, double height){
* * * ** ** ***** * *** ** ** **** * * = width;
* ** * ** ** * ** *** * *** * * ** = height;
* ** * * **** *



public:
** * * ****** ** ** ** *** w;
**** ** ** * ** ** *** h;

};



class ** **** public shape{

public:
* * * ***** ***** *** * area(){
**** * ******* **** * * * ******* * ** *** ** * * ** *
* ** * * *** * *** ** **

};



class *** *** public shape{

public:
*** * *** **** * *** * * * area(){
** ** * ** * * ** ** * * ** * * * * * * ** * * ** * *** * *****
** ** * * * ** * ***

};



int main (){
*** **** *** * ** ** * *
* * ** * * * * ** *** rect;
*** * * * ** ** ***** * * tri;
* * * * * ** * ** *** (5,3);
***** ** * ***** * ** ** (2,5);
** * ** * * ** *** * *** ** * * ** ******* *** ** **** ** * * *** * ** * * ** ****** endl;
* * ** * * ** **** * ** * 0;

}
answered by (-368 points)
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Hidden content!
*** * * ** ***

using * std;



class ******

{

public:
** ** ** * * ** * * * * ***** a,int b);
** *** * *** ** * area();
* **** *** ****** a_,b_;

};



void *** * * * ** a,int b)

{
* **** *** ****** * *** *
* * * * ** * * ** ** * * *

}



int * * *** **

{
* * *** ** * ** * * *** * * *

}





class * * *

{
***
** *** * **** * * ** a,int b);
*** * ***** * ** *** ** area();
* ** *** * * **** * ** * a_,b_;

};



void ** * **** * a,int b)

{
** * **** ** * ** * * **
**** ** * *** * ** ** **

}



int *** * * **

{
* * * ***** ** *** * *** a_*b_;

}



int main ()

{
* * *** *** ** * * ** * rect;
* ** *** *** **** *** ** * tri;
**** **** ** * ** * * * * (5,3);
* ** ** ** * *** ** *** * (2,5);
* * * ****** * ** ** * * * ** * * ** ** * * * * * * * **** * * ** * * endl;
** ** ** ** ** ** 0;

}
answered by (-324 points)
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